EP0840159A3 - Image forming apparatus - Google Patents

Image forming apparatus Download PDF

Info

Publication number
EP0840159A3
EP0840159A3 EP97308803A EP97308803A EP0840159A3 EP 0840159 A3 EP0840159 A3 EP 0840159A3 EP 97308803 A EP97308803 A EP 97308803A EP 97308803 A EP97308803 A EP 97308803A EP 0840159 A3 EP0840159 A3 EP 0840159A3
Authority
EP
European Patent Office
Prior art keywords
image
light
palslm
phase
illumination light
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP97308803A
Other languages
German (de)
French (fr)
Other versions
EP0840159B1 (en
EP0840159A2 (en
Inventor
Haruyoshi Toyoda
Jesper Gluckstad
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Riso National Laboratory
Hamamatsu Photonics KK
Original Assignee
Riso National Laboratory
Hamamatsu Photonics KK
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Riso National Laboratory, Hamamatsu Photonics KK filed Critical Riso National Laboratory
Priority to EP04024114A priority Critical patent/EP1498766B1/en
Publication of EP0840159A2 publication Critical patent/EP0840159A2/en
Publication of EP0840159A3 publication Critical patent/EP0840159A3/en
Application granted granted Critical
Publication of EP0840159B1 publication Critical patent/EP0840159B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/42—Diffraction optics, i.e. systems including a diffractive element being designed for providing a diffractive effect
    • G02B27/46—Systems using spatial filters
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/50—Optics for phase object visualisation
    • G02B27/52—Phase contrast optics
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06E—OPTICAL COMPUTING DEVICES; COMPUTING DEVICES USING OTHER RADIATIONS WITH SIMILAR PROPERTIES
    • G06E3/00—Devices not provided for in group G06E1/00, e.g. for processing analogue or hybrid data
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06E—OPTICAL COMPUTING DEVICES; COMPUTING DEVICES USING OTHER RADIATIONS WITH SIMILAR PROPERTIES
    • G06E3/00—Devices not provided for in group G06E1/00, e.g. for processing analogue or hybrid data
    • G06E3/001—Analogue devices in which mathematical operations are carried out with the aid of optical or electro-optical elements
    • G06E3/005—Analogue devices in which mathematical operations are carried out with the aid of optical or electro-optical elements using electro-optical or opto-electronic means
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
    • G03H2225/00—Active addressable light modulator
    • G03H2225/20—Nature, e.g. e-beam addressed
    • G03H2225/25—Optically addressed SLM [OA-SLM]
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
    • G03H2225/00—Active addressable light modulator
    • G03H2225/30—Modulation
    • G03H2225/32—Phase only

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Optics & Photonics (AREA)
  • Mathematical Physics (AREA)
  • Nonlinear Science (AREA)
  • Liquid Crystal (AREA)
  • Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)

Abstract

An image H(x, y) for displaying a target image G(x, y) is displayed on a liquid-crystal display panel and illumination light from an illumination light source is made to pass therethrough to form an image on a PALSLM. Read light hv is radiated to the PALSLM and a phase-modulated light image α(x, y) read out of the PALSLM is subjected to Fourier transform by a lens. A phase contrast filter gives a predetermined phase shift to only the zero-order light component of Fourier light image αf(x, y). The phase-shifted light image is subjected to inverse Fourier transform by a lens to project an output image O(x, y) to an output plane. A light image O'(x, y) branched by a beam sampler is picked up by a pickup device and an evaluation value calculating unit evaluates conformity between the image O(x, y) and the image G(x, y). A control unit performs feedback control of optical characteristics of the illumination light source, PALSLM, and phase contrast filter, based on the evaluation result.
EP97308803A 1996-11-01 1997-11-03 Image forming apparatus Expired - Lifetime EP0840159B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP04024114A EP1498766B1 (en) 1996-11-01 1997-11-03 Image forming apparatus

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
JP29214396 1996-11-01
JP29214396 1996-11-01
JP292143/96 1996-11-01
JP19257797A JP3918044B2 (en) 1996-11-01 1997-07-17 Image forming apparatus
JP192577/97 1997-07-17
JP19257797 1997-07-17

Related Child Applications (1)

Application Number Title Priority Date Filing Date
EP04024114A Division EP1498766B1 (en) 1996-11-01 1997-11-03 Image forming apparatus

Publications (3)

Publication Number Publication Date
EP0840159A2 EP0840159A2 (en) 1998-05-06
EP0840159A3 true EP0840159A3 (en) 1999-06-16
EP0840159B1 EP0840159B1 (en) 2005-01-12

Family

ID=26507403

Family Applications (2)

Application Number Title Priority Date Filing Date
EP97308803A Expired - Lifetime EP0840159B1 (en) 1996-11-01 1997-11-03 Image forming apparatus
EP04024114A Expired - Lifetime EP1498766B1 (en) 1996-11-01 1997-11-03 Image forming apparatus

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP04024114A Expired - Lifetime EP1498766B1 (en) 1996-11-01 1997-11-03 Image forming apparatus

Country Status (4)

Country Link
US (1) US6021223A (en)
EP (2) EP0840159B1 (en)
JP (1) JP3918044B2 (en)
DE (2) DE69732209T2 (en)

Families Citing this family (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6215532B1 (en) 1998-07-27 2001-04-10 Mixed Reality Systems Laboratory Inc. Image observing apparatus for observing outside information superposed with a display image
JP4158280B2 (en) * 1999-06-04 2008-10-01 ソニー株式会社 Image processing apparatus and method
JP3879805B2 (en) * 1999-07-02 2007-02-14 富士ゼロックス株式会社 Optical filtering apparatus and method
WO2001053876A1 (en) * 2000-01-19 2001-07-26 Hamamatsu Photonics K.K. Laser machinning device
US6870896B2 (en) 2000-12-28 2005-03-22 Osmic, Inc. Dark-field phase contrast imaging
US6804324B2 (en) * 2001-03-01 2004-10-12 Osmo, Inc. X-ray phase contrast imaging using a fabry-perot interferometer concept
WO2003036368A1 (en) 2001-10-25 2003-05-01 Hamamatsu Photonics K.K. Phase modulation apparatus and phase modulation method
US7365858B2 (en) * 2001-12-18 2008-04-29 Massachusetts Institute Of Technology Systems and methods for phase measurements
US7557929B2 (en) 2001-12-18 2009-07-07 Massachusetts Institute Of Technology Systems and methods for phase measurements
GB2383886B (en) * 2001-12-20 2005-07-20 Corning Inc Spatial light modulators with improved inter-pixel performance
WO2005096115A1 (en) * 2004-03-31 2005-10-13 Forskningscenter Risø Generation of a desired three-dimensional electromagnetic field
US8022344B2 (en) 2004-04-26 2011-09-20 Ntt Docomo, Inc. Optical wavefront control pattern generating apparatus and optical wavefront control pattern generating method
JP2005338787A (en) * 2004-04-26 2005-12-08 Ntt Docomo Inc Optical wavefront control pattern generating apparatus and optical wavefront control pattern generating method
JP4718223B2 (en) * 2005-04-11 2011-07-06 株式会社エヌ・ティ・ティ・ドコモ Light wavefront control pattern generation apparatus and light wavefront control pattern generation method
US7697191B2 (en) * 2004-07-15 2010-04-13 Danmarks Tekniske Universitet Generation of a desired three-dimensional electromagnetic field
JP4664031B2 (en) 2004-08-31 2011-04-06 浜松ホトニクス株式会社 Optical pattern forming method and apparatus, and optical tweezers
GB2438458A (en) 2006-05-11 2007-11-28 Univ Cambridge Tech Blocking zero-order light in phase shift hologram generation
GB2438026A (en) 2006-05-11 2007-11-14 Univ Cambridge Tech Phase retrevial in hologram generation using amplitude and phase feedback
JP5155310B2 (en) * 2006-06-19 2013-03-06 ダンマークス テクニスク ユニバーシテット Light beam generation
EP1873765A1 (en) * 2006-06-27 2008-01-02 Deutsche Thomson-Brandt Gmbh Holographic storage system based on common path interferometry
US7738047B2 (en) 2006-11-06 2010-06-15 University Of Massachusetts Systems and methods of all-optical Fourier phase contrast imaging using dye doped liquid crystals
JP4438842B2 (en) * 2007-08-31 2010-03-24 セイコーエプソン株式会社 DRIVE CIRCUIT FOR SEMICONDUCTOR LIGHT EMITTING ELEMENT AND LIGHT SOURCE DEVICE, LIGHTING DEVICE, MONITOR DEVICE, AND IMAGE DISPLAY DEVICE USING THE SAME
US8203788B2 (en) 2007-09-17 2012-06-19 Danmarks Tekinske Universitet Electromagnetic beam converter
GB2454246B (en) 2007-11-02 2010-03-10 Light Blue Optics Ltd Holographic image display systems
US8662962B2 (en) * 2008-06-30 2014-03-04 3M Innovative Properties Company Sandpaper with non-slip coating layer and method of using
WO2012103233A1 (en) * 2011-01-25 2012-08-02 Massachusetts Institute Of Technology Single-shot full-field reflection phase microscopy
JP5809420B2 (en) 2011-02-22 2015-11-10 浜松ホトニクス株式会社 Spatial light modulation device and spatial light modulation method
EP3364651B1 (en) * 2011-04-19 2020-03-04 Dolby Laboratories Licensing Corporation High luminance projection displays and associated methods
GB2542911B (en) * 2011-10-14 2017-07-26 Solentim Ltd Method of and apparatus for analysis of a sample of biological tissue cells
WO2013102464A1 (en) 2012-01-06 2013-07-11 Danmarks Tekniske Universitet 4f-based optical phase imaging system
JP6276749B2 (en) * 2013-03-06 2018-02-07 浜松ホトニクス株式会社 Fluorescence receiving device and fluorescence receiving method
DE102016217785A1 (en) 2016-09-16 2018-03-22 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Optical arrangement for generating light field distributions and method for operating an optical arrangement
GB2598088B (en) * 2020-08-05 2022-08-24 Envisics Ltd Holographic fingerprint
CN113362256B (en) * 2021-07-02 2023-02-17 中国船舶重工集团公司第七二四研究所 High-resolution image edge enhancement method based on fractional Fourier transform

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3598471A (en) * 1968-11-22 1971-08-10 Corning Glass Works Optical contrast enhancement system
US5090795A (en) * 1987-10-22 1992-02-25 Hughes Aircraft Company Integrated adaptive optics apparatus
EP0475659A2 (en) * 1990-09-05 1992-03-18 Seiko Instruments Inc. Optical pattern recognition apparatus
US5214534A (en) * 1991-06-19 1993-05-25 The United States Of America As Represented By The Secretary Of The Air Force Coding intensity images as phase-only images for use in an optical correlator
US5418598A (en) * 1990-10-24 1995-05-23 Hitachi, Ltd. Projection exposure apparatus
EP0657760A1 (en) * 1993-09-15 1995-06-14 Texas Instruments Incorporated Image simulation and projection system
WO1996034307A1 (en) * 1995-04-28 1996-10-31 Forskningscenter Risø Phase contrast imaging

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69028577T2 (en) * 1989-06-16 1997-02-06 Seiko Instr Inc Optical pattern recognition device
JP3176661B2 (en) * 1991-10-03 2001-06-18 セイコーインスツルメンツ株式会社 Optical writing spatial light modulator and sensitivity adjustment method thereof

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3598471A (en) * 1968-11-22 1971-08-10 Corning Glass Works Optical contrast enhancement system
US5090795A (en) * 1987-10-22 1992-02-25 Hughes Aircraft Company Integrated adaptive optics apparatus
EP0475659A2 (en) * 1990-09-05 1992-03-18 Seiko Instruments Inc. Optical pattern recognition apparatus
US5418598A (en) * 1990-10-24 1995-05-23 Hitachi, Ltd. Projection exposure apparatus
US5214534A (en) * 1991-06-19 1993-05-25 The United States Of America As Represented By The Secretary Of The Air Force Coding intensity images as phase-only images for use in an optical correlator
EP0657760A1 (en) * 1993-09-15 1995-06-14 Texas Instruments Incorporated Image simulation and projection system
WO1996034307A1 (en) * 1995-04-28 1996-10-31 Forskningscenter Risø Phase contrast imaging

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
GLUCKSTAD J: "Phase contrast image synthesis", OPTICS COMMUNICATIONS, vol. 130, no. 4, 1 October 1996 (1996-10-01), pages 225-230, XP004012043 *

Also Published As

Publication number Publication date
EP0840159B1 (en) 2005-01-12
EP1498766A1 (en) 2005-01-19
DE69740084D1 (en) 2011-02-03
DE69732209T2 (en) 2005-12-22
EP1498766B1 (en) 2010-12-22
JPH10186283A (en) 1998-07-14
JP3918044B2 (en) 2007-05-23
EP0840159A2 (en) 1998-05-06
US6021223A (en) 2000-02-01
DE69732209D1 (en) 2005-02-17

Similar Documents

Publication Publication Date Title
EP0840159A3 (en) Image forming apparatus
EP0734184A3 (en) Efficient optical system for a high resolution projection display employing reflection light valves
EP0851272A3 (en) Image display device, semiconductor device and optical equipment
US5589956A (en) Image display apparatus
EP1158336A3 (en) System and method for varying the transmittance of light through a media
WO2000043819A3 (en) Confocal microscopy apparatus and method
DE60125183D1 (en) PICTURE DISPLAY DEVICE OF THE PROJECTION TYPE
DE69209204T2 (en) Illuminated image display with waveguide
EP1533649A3 (en) Liquid crystal display device
EP0734183A3 (en) Efficient optical system for a high resolution projection display employing reflection light valves
ATE209364T1 (en) METHOD AND DEVICE FOR VIEWING AN IMAGE
DK1090385T3 (en) A reproduction apparatus
EP1209508A3 (en) Display for 3D images
EP0851260A3 (en) Display device
EA200100699A1 (en) IMAGE DISPLAY SYSTEM
EP0825472A3 (en) Projection-type display apparatus
EP0704737A3 (en) Optical system for printers and display systems
EP0772103A3 (en) A method for producing a hologram and a display device using the same
AU4004195A (en) Viewing device and method for ascertaining simultaneously optical color shift characteristics of an optically variable device
FR2418476A1 (en) OPTICAL DEVICE FOR GOGGLES FOR NIGHT VISION
EP1150155A3 (en) Image display apparatus and optical system
US4824205A (en) Apparatus for improving image formed by imaging optical system
JPH01100492A (en) Laser vision sensor
WO1997015855A3 (en) Optical instrument
EP0922986A3 (en) Controllable image projector

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): DE FR GB

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

RIC1 Information provided on ipc code assigned before grant

Free format text: 6G 02B 27/52 A, 6G 02B 26/06 B, 6G 06E 3/00 B

17P Request for examination filed

Effective date: 19991213

AKX Designation fees paid

Free format text: DE FR GB

17Q First examination report despatched

Effective date: 20030128

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE FR GB

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: RISO NATIONAL LABORATORY

Owner name: HAMAMATSU PHOTONICS K.K.

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

REF Corresponds to:

Ref document number: 69732209

Country of ref document: DE

Date of ref document: 20050217

Kind code of ref document: P

ET Fr: translation filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20051013

REG Reference to a national code

Ref country code: FR

Ref legal event code: TQ

REG Reference to a national code

Ref country code: GB

Ref legal event code: 732E

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20121107

Year of fee payment: 16

Ref country code: FR

Payment date: 20121130

Year of fee payment: 16

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20121107

Year of fee payment: 16

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20131103

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20140731

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20140603

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 69732209

Country of ref document: DE

Effective date: 20140603

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20131103

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20131202